ci: revert to the old format check pattern

.github/workflows/publish.yml

@@ -65,7 +65,7 @@ jobs:
  - name: ✅ Validate extracted version format (should be pubspec.yaml valid version)
  run: |
  version=${{ steps.extract_version.outputs.VERSION }}
- if [[ ! $version =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+ if [[ ! $version =~ ^[0-9]+\.[0-9]+\.[0-9]+(-[0-9A-Za-z.-]+)?(\+[0-9A-Za-z.-]+)?$ ]]; then
  echo "❌ Invalid version format: $version. The version must be a valid pubspec.yaml version"
  exit 1
  fi